HELIX COMPOSE Ci3 K130.2-S3 – 5.25″ 2-Way Component Car Speaker System | 135W Peak Power

The HELIX COMPOSE Ci3 K130.2-S3 is a premium 5.25-inch (130 mm) 2-way component car speaker system from the HELIX COMPOSE i3 Series, designed to deliver exceptional sound quality, high efficiency, and professional vehicle integration.

Developed with HELIX’s advanced COMPOSE platform, this speaker system combines innovative materials, smart engineering, and installation flexibility to provide a powerful and detailed listening experience. The Ci3 K130.2-S3 is engineered to work perfectly with HELIX and MATCH amplifiers, delivering maximum performance and dynamic range.

Featuring a unique Cenosphere-coated paper midbass cone, a 20 mm titanium dome tweeter, 3 Ω efficiency technology, and a premium external crossover, this system provides precise midbass, clear vocals, and brilliant high-frequency reproduction.

Key Features

• Premium 5.25″ (130 mm) 2-way component speaker system
• 135 W Peak Power / 90 W RMS
• High-efficiency 3 Ω technology for maximum amplifier performance
• 20 mm (0.75″) titanium dome tweeter
• Neodymium tweeter magnet for detailed and dynamic highs
• 130 mm midbass driver with Cenosphere-coated paper cone
• Glass-reinforced high-tech polymer basket
• Powerful magnet system for excellent impulse response
• Compact external crossover with adjustable tweeter level
• 12 dB tweeter crossover slope with integrated protection
• COMPOSE Connect & ProConnect automotive-grade terminals
• FlexMount20 compatibility for factory-style installations
• Plug & Play WireKit compatibility

Advanced Cenosphere Cone Technology

The HELIX Ci3 K130.2-S3 features an innovative Cenosphere-coated paper cone. This technology integrates hollow spheres into a polyamide coating applied to the cone surface, increasing stiffness while improving internal damping.

The result is an exceptionally lightweight and rigid diaphragm capable of reproducing music with excellent precision, fast response, and natural tonal balance.

Powerful Midbass Performance

The 130 mm midbass driver delivers powerful and controlled low frequencies while maintaining accurate midrange reproduction. The high-tech polymer composite basket, reinforced with glass spheres, reduces unwanted resonance and provides excellent mechanical stability.

The powerful motor system ensures fast transient response, while the polyurethane dust cap improves upper midrange clarity for more realistic vocals and instruments.

Titanium Dome Tweeter – Clear and Dynamic High Frequencies

The compact 20 mm titanium dome tweeter provides excellent detail, speed, and durability. Thanks to its low moving mass, high internal damping, and neodymium magnet, it delivers crisp and dynamic treble reproduction without excessive harshness.

The included mounting options allow installation in multiple positions:

• Flush mount
• Angle mount
• Vehicle-specific integration using optional FlexMount20 adapters

Professional Crossover Design

The included Ci3 FX-UNI.2 crossover is specially tuned for the HELIX COMPOSE i3 components.

Features:

• 6-stage tweeter level adjustment
• 12 dB high-pass filter for tweeter
• Integrated tweeter protection
• Optimized frequency distribution
• Compact design for easy installation

This allows precise tuning according to vehicle acoustics and speaker mounting position.

Efficient 3 Ω Technology

The 3 Ω impedance design allows HELIX and MATCH amplifiers to deliver increased output compared to traditional 4 Ω speakers.

Benefits:

• Higher efficiency
• Increased sound pressure
• Better dynamics
• Improved amplifier utilization

Technical Specifications

Package Contents

• 2 × HELIX Ci3 W130-S3 Midbass Speakers
• 2 × HELIX Ci3 FX-UNI.2 Tweeters
• 2 × External Crossovers
• Tweeter mounting accessories
• Mounting hardware

Why Choose the HELIX COMPOSE Ci3 K130.2-S3?

The HELIX COMPOSE Ci3 K130.2-S3 is an ideal choice for enthusiasts who want premium German engineering, excellent sound quality, and flexible installation options. With its Cenosphere-coated midbass cone, titanium tweeter, 3 Ω efficiency technology, and advanced crossover system, it delivers powerful bass, precise vocals, detailed highs, and a true high-performance car audio experience.